From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
To: edk2-devel@lists.01.org
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Michael D Kinney <michael.d.kinney@intel.com>,
Liming Gao <liming.gao@intel.com>,
Jian J Wang <jian.j.wang@intel.com>, Hao Wu <hao.a.wu@intel.com>,
Leif Lindholm <leif.lindholm@linaro.org>,
Laszlo Ersek <lersek@redhat.com>,
Eric Auger <eric.auger@redhat.com>,
Andrew Jones <drjones@redhat.com>,
Philippe Mathieu-Daude <philmd@redhat.com>
Subject: [PATCH v2 0/6] introduce MAX_ALLOC_ADDRESS to limit boot time allocations
Date: Wed, 19 Dec 2018 21:56:34 +0100 [thread overview]
Message-ID: <20181219205640.4704-1-ard.biesheuvel@linaro.org> (raw)
Since modifying MAX_ADDRESS to limit the memory used at boot time has
turned out to be intractible, this series proposes another approach to do
the same, by introducing MAX_ALLOC_ADDRESS for firmware internal use.
I tested these patches with ArmVirtQemu in the following way:
- limit MAX_ALLOC_ADDRESS to 0xFFFFFFFF (4 GB)
- build QEMU_EFI.fd
- run it under mach-virt with 4 GB of DRAM and highmem=off
This runs as expected, and produces a memory map ending in the following
lines
BS_Data 00000000FFFFD000-00000000FFFFFFFF 0000000000000003 0000000000000008
Available 0000000100000000-000000013FFFFFFF 0000000000040000 0000000000000008
which proves that the memory above the limit is recorded and reported by
the OS, but left untouched by the firmware memory allocation routines.
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao Wu <hao.a.wu@intel.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Eric Auger <eric.auger@redhat.com>
Cc: Andrew Jones <drjones@redhat.com>
Cc: Philippe Mathieu-Daude <philmd@redhat.com>
Ard Biesheuvel (6):
MdePkg/Base: introduce MAX_ALLOC_ADDRESS
MdeModulePkg/Dxe/Gcd: disregard memory above MAX_ALLOC_ADDRESS
MdeModulePkg/Dxe/Page: take MAX_ALLOC_ADDRESS into account
ArmPkg/ArmMmuLib: take MAX_ALLOC_ADDRESS into account
ArmPlatformPkg/MemoryInitPeim: take MAX_ALLOC_ADDRESS into account
ArmVirtPkg/MemoryInitPeiLib: split memory HOB based on
MAX_ALLOC_ADDRESS
MdePkg/Include/AArch64/ProcessorBind.h | 5 ++
MdePkg/Include/Arm/ProcessorBind.h | 5 ++
MdePkg/Include/Ebc/ProcessorBind.h | 5 ++
MdePkg/Include/Ia32/ProcessorBind.h | 5 ++
MdePkg/Include/X64/ProcessorBind.h | 5 ++
.../Library/ArmMmuLib/AArch64/ArmMmuLibCore.c | 2 +-
ArmPlatformPkg/MemoryInitPei/MemoryInitPeim.c | 6 +--
.../ArmVirtMemoryInitPeiLib.c | 8 +--
MdeModulePkg/Core/Dxe/Gcd/Gcd.c | 8 +--
MdeModulePkg/Core/Dxe/Mem/Page.c | 52 +++++++++----------
10 files changed, 63 insertions(+), 38 deletions(-)
--
2.19.2
next reply other threads:[~2018-12-19 20:56 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-19 20:56 Ard Biesheuvel [this message]
2018-12-19 20:56 ` [PATCH v2 1/6] MdePkg/Base: introduce MAX_ALLOC_ADDRESS Ard Biesheuvel
2018-12-20 6:45 ` Gao, Liming
2018-12-19 20:56 ` [PATCH v2 2/6] MdeModulePkg/Dxe/Gcd: disregard memory above MAX_ALLOC_ADDRESS Ard Biesheuvel
2018-12-19 20:56 ` [PATCH v2 3/6] MdeModulePkg/Dxe/Page: take MAX_ALLOC_ADDRESS into account Ard Biesheuvel
2018-12-20 3:27 ` Wang, Jian J
2018-12-19 20:56 ` [PATCH v2 4/6] ArmPkg/ArmMmuLib: " Ard Biesheuvel
2018-12-19 21:03 ` Leif Lindholm
2018-12-19 20:56 ` [PATCH v2 5/6] ArmPlatformPkg/MemoryInitPeim: " Ard Biesheuvel
2018-12-19 21:15 ` Leif Lindholm
2018-12-19 20:56 ` [PATCH v2 6/6] ArmVirtPkg/MemoryInitPeiLib: split memory HOB based on MAX_ALLOC_ADDRESS Ard Biesheuvel
2018-12-20 10:38 ` [PATCH v2 0/6] introduce MAX_ALLOC_ADDRESS to limit boot time allocations Ard Biesheuvel
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